Shares in LinkedIn soared in their first day of public trading, closing at $94.25 (€66) - 109.4% higher than the $45 opening price. The company, which last year earned just $15.4 million, now has a market cap of $8.9 billion.

Dell nearly tripled its quarterly profit to $949 million (€664 million), despite a marginal 1% increase in revenue to $341 million, as a result of a trend towards higher-margin products including services.

Microsoft states claims by Intel that the next Windows operating system will be available in multiple versions that run on tablets are inaccurate, noting that its development of Windows on SoC is still at the tech demo stage.